Having "timeout in select" issues

I’m running FireFly svn-1696 on a NSLU2 w/ uNSLUng V2.3R63-uNSLUng-6.10-beta.
Accessing FireFly via iTunes (now v.9.0.1.8) on Windows.
Entire library is ~9000 tunes, across 5 different FireFly music directories.
Connecting generally works nicely. And I can play several hours of stream.
Eventually, though, I lose FireFly; the slug stays up, but none of the mt-daapd processes survive.
When running with debuglevel of 5, I find I’m getting a log full of “timeout in select” records.

2009-10-01 13:57:29 (00003803): timeout in select

If I try to trace back thread 00003803, the very first thing I find in the log is:

2009-10-01 05:27:29 (00003803): Unknown meta code: daap.songalbumartist

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.has-videodaap.songcategory

2009-10-01 05:27:29 (00003803): Unknown meta code: daap.songextradata

2009-10-01 05:27:29 (00003803): Unknown meta code: daap.songcontentdescription

2009-10-01 05:27:29 (00003803): Unknown meta code: daap.songlongcontentdescription

2009-10-01 05:27:29 (00003803): Unknown meta code: daap.songkeywords

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.is-podcast

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.mediakind

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.extended-media-kind

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.series-name

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.network-name

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.episode-num-str

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.episode-sort

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.season-num

2009-10-01 05:27:29 (00003803): Unknown meta code: daap.songgapless

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.gapless-enc-del

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.gapless-heur

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.gapless-enc-dr

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.gapless-dur

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.gapless-resy

2009-10-01 05:27:29 (00003803): Unknown meta code: com.apple.itunes.content-rating

2009-10-01 05:27:43 (00003803): Unknown meta code: com.apple.itunes.is-podcast-playlist

2009-10-01 05:27:43 (00003803): Unknown meta code: com.apple.itunes.special-playlist

2009-10-01 05:27:43 (00003803): Unknown meta code: com.apple.itunes.saved-genius

then logs of other threads merrily streaming tunes mixed with several

2009-10-01 05:28:41 (00000400): Rescanning database

2009-10-01 05:31:03 (00000400): Starting playlist scan

2009-10-01 05:31:18 (00000400): Updating playlists

2009-10-01 05:31:20 (00000400): Scanned 8966 songs (was 8966) in 159 seconds

then a couple of threads start getting into trouble

2009-10-01 05:37:01 (00004805): Thread 16: Entering ws_returnerror (302: Moved)

2009-10-01 05:37:02 (00007806): Cannot resolve /opt/share/mt-daapd/admin-root//favicon.ico

2009-10-01 05:37:02 (00007806): Thread 28: Entering ws_returnerror (404: Not found)

2009-10-01 05:37:05 (0000bc06): Cannot resolve /opt/share/mt-daapd/admin-root//favicon.ico

2009-10-01 05:37:05 (0000bc06): Thread 45: Entering ws_returnerror (404: Not found)

2009-10-01 05:37:05 (0000c006): Cannot resolve /opt/share/mt-daapd/admin-root//favicon.ico

2009-10-01 05:37:05 (0000c006): Thread 46: Entering ws_returnerror (404: Not found)

though that looks like issues with the web admin page.
But immediately following

2009-10-01 05:50:42 (0000d004): Write error: Connection reset by peer

2009-10-01 05:50:42 (0000d004): Error copying file to remote...

and shortly thereafter I start seeing my first

2009-10-01 05:57:40 (00003803): timeout in select

followed by several hundred of the same, one every second.
Eventually more and more threads start succumbing to the “timeout in select”, until finally I get

2009-10-01 13:58:30 (0002d804): Write error: Connection reset by peer

2009-10-01 13:58:30 (0002d804): Error copying file to remote...

2009-10-01 13:58:31 (00000400): Rendezvous socket closed (daap server crashed?) Aborting.

2009-10-01 13:58:31: Aborting

What is “timeout in select”?
It seems to be this resource vortex, sucking down my FireFly.
Any ideas how to fix/prevent?

Thanks in advance!
-Carl